Human hair is used to create OLED screens (2 photos + video)

The unique property of human hair,which are the source of carbon and nitrogen needed to create light-emitting particles, it was used by experts at Queensland University of Technology (QUT). Now, thousands of tons of human hair thrown out by hairdressers in a landfill can be disposed of and sent back to humanity again.

The process of creating OLED panels begins withthorough cleansing of hair from impurities. The hair is then burned at a temperature of 240 ° C, resulting in the formation of carbon and nitrogen. At the next stage, the resulting material is converted into carbon nanodot, the linear dimensions of which do not exceed 10 nanometers.

Next, the obtained nanodot are scattered onpolymer surface, where they are combined into the so-called "nanoislands", which can be used as an active layer of OLED screens. A small voltage is enough for the nanodot to “light up” with light in the blue spectrum. It is for the emission of light of such a spectrum by screens that the minimum amount of energy is required. The brightness can reach 350 cd / m2, and on a solid glass base you can get a brightness of 700 cd / m2.

Technology for producing nanodot from humanHair is not intended for creating large displays of smartphones and tablets, but can be used on small wearable devices, packaging or medicines.

Use of organic emitting devicesbased on human hair will allow you to create intelligent packaging, small signs, smart dressings and other medical devices. The use of non-toxic material is ideal for the needs of medicine. In the next step, scientists will try to replace human hair with animal hair.

Source: newatlas